Gripper attachment for pedals.



E. 1:". & H. PAWSAT. GRIPPBR ATTACHMENT FOR PEDALE. APPLICATION FILEDJAN. 17. 1910.

959,1 60. 1 Patented May 24, 1910.

EWALD F. PAWSAT AND HERMANN PAWSAT, OF SHEBOYGAN, WISCONSIN.

GRIPPER ATTACHMENT FOR PEDALS.

Specification of Letters Patent.

Patented May 24, 1910.

Application filed January 17, 1910. Serial No. 538,413.

To all 'whom it may concern:

Be it known that we, EWALD F. PAwsA'r and HERMANN PAwsA'r, citizens ofthe United States, and residents of Sheboygan, in the countyof Sheboyganand State of lVisconsin, have invented certain new and usefulImprovements in Gripper Attachments for Pedals; and we do hereby declarethat the following is a full, clear, and exact description thereof.

The object of our invention is to provide a simple and effectivegripping-plate attachment for bicycle pedals, the invention consistingin certain peculiarities of construction and combination of parts asfully set forth hereinafter with reference to the accompanying drawingsand subsequently claimed.

In the drawings Figure l represents a side elevation of a pedal providedwith a gripping-plate embodying the features of our invention, parts ofthe same being broken away and in section to better illustrate itsdetails of construction; Fig` 2, a transverse sectional view of the sameas indicated by line 2 2 of Fig. l, and Fig. 3, an inverted plan view ofthe same.

Referring by characters to the drawings, l indicates a pedal pin uponwhich is loosely mounted the sleeve portion 2 of the pedal. The sleeveis provided with laterally eX- tending arms 3 for the support of astirrupstrap 4, the same being of the rat-trap type and provided withupper and lower toothed edges cut away in scroll formation for thepurpose of ornamentation and reduction in weight. This pedal is ofstandard type and forms no part of our invention, which inventionprimarily consists in providing means for attaching a corrugatedgripping-plate to said pedal, the gripping-plate being adjusted over thetoothed edges of the stirrupstrap with its corrugated surface exposedfor the purpose of being engaged by the feet of the operator wherebyliability of slipping is eliminated. The corrugated gripping surfacc ispreferably composed of some pliable material suoli as rubber oranalogous material reinforced by a metallic backing-plate.

Referring to the three iigures of the drawings, 5 indicates a flatmetallic backing-plate, which plate bridges the space intermediate ofthe edges of the stirrup-strap l with its lower face arranged to restupon the toothed edge of the same. The width of the tread portion of thebacking-plate is the same as the width between the opposite edges of thestirrup-strap, the said tread portion being terminated with an abruptright angle flange 6.l which flange is bent downwardly and overlaps theouter opposite faces of the stirrup-strap. Ears 7 extend downwardly fromthe central portion of the flanges7 the ears being formed with elongatedslots 8, which slots are arranged to coincide with apertures 9 formingpart of the scroll design of the stirrup-strap. The ears 7 with theirelongated slots, together with the apertures 9 in the scroll design ofthe stirrup-strap thus form a convenient and simple means whereby thegripping-plate may be securely and quicklyT attached to a pedal ofstandard design. A single bolt 10 is utilized for securing these partstogether, which bolt is provided with an intermediate offset portion 11whereby said bolt when adjusted to position is cleared from the sleeveportion 2 of the pedal. The offset portion ll is parallel to the headand shank portion of the bolt, being connected thereto by oblique boltsections l2 as best shown in F 2. Owing to the fact that the sections l2are disposed obliquely with relation to the remainder of the bolt thesame may readily be inserted through the respective elongated slots ofthe ears 7 and apertures 9 of the stirrup -strap, the peculiar formationrendering it possible to pass said bolts through these various slots andapertures and over the sleeve 2.

One end of the bolt 10 is threaded for the reception of a nut 13 andafter insertion of the bolt in its position thereon said nut is run uponthe screw threaded end to securely bind the parts together.

By referring to Fig. 2 of the drawing it will be seen that when the boltand various parts are assembled the oset portion 11 of said bolt passesbetween the grippingplate and the sleeve 2 and thus renders the devicesightly as well as to insure the bolt being retained in position eventhough the clamping nut should become detached. This is due to the factthat when the user exerts pressure vupon the gripping-plate, the latteris sufficiently resilient to permit a slight sag, whereby the offsetportion 1l of the bolt 1s gripped between said gripping-plate andsleeve.

A sheet 14, preferably of corrugated rubber, is secured to the treadportion of the backing-strip 5 by means of rivets l5, the

more, in practice it has been found that by grooving or Hanging thebacking-strip the number of operations for completing the device isincreased, thus proportionately ink creasing the cost in manufacture andat the Ysaine time these grooves or flanges tend to crystallize themetal and thereby weaken the strength of the same to the detriment ofits Wearing qualities. By simply utilizing a fiat, unbroken surface forthe tread portion of the backing-strip in connection With a singlelongitudinal bend at its edges as shown, the above objectionablefeatures of construction have thus been eliminated.

vWe claim:

1. In a bicycle pedal having a scroll stirrup-strap; the combination ofa gripping attachment comprising' a continuous backing-plate having anunbroken flat tread portion, right angle flanged portions extending fromthe backing-plate and adapted to overlap the stirrup-strap, slotted earsextending from the flanges, the slots being arranged to coincide Withapertures of the `scrolled stirrup-strap, and a securing bolt for thegripping attachment, the securing bolt being arranged to pass throughthe slotted apertures of the ears and scroll apertures of thestirrup-strap aforesaid.

2. In a bicycle pedal having a scroll stirrup-strap; the combination ofa gripping attachment comprising a continuous backing-plate having anunbroken tread portion, right angle flanges extending from thebacking-plate adapted to overlap the stirrupstrap, slotted earsextending from the flanges and means for securing the slotted ears tosaid stirrup-strap.

8. In a bicycle pedal having'aV scroll stirrup-strap;Y the combinationof a gripping attachment comprising a backing-plate having aperturedflanged extensions adapted to engage the stirrup-strap, a corrugatedsheet secured to the backing-plate and a securing bolt for thebacking-plate, the securing bolt being provided With an intermediateoset portion.

4. In a bicycle pedal having a central sleeve and aperturedstirrup-strap; a gripping attachment for the pedal comprising abacking-strip having apertured flanges adapted to straddle thestirrup-strap, a corrugated sheet secured to the backing-plate and asecuring bolt for the gripping attachment arranged to pass through theflanged apertures and stirrup apertures, the bolt being provided With anintermediate oset portion disposed to one side of the pedal sleeve, theoset portion being connected by oblique sections to the head and shankportions of said bolt.

In testimony that We claim the foregoing We have hereunto set our handsat Sheboygan in the county of Sheboygan andState of Visconsin in thepresence of tvvo Witnesses.

EWALD F. PAWSAT.

HERMANN PAWSAT.

Witnesses: Y

IRENE D. I-IANSON, Louis GRASSE.

